Home / 54,645.35-81,983.68-19,587.47

Finding the Fourth Proportional to 54,645.35, 81,983.68 and 19,587.47

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Solution

The fourth proportional to 54,645.35, 81,983.68 and 19,587.47 is: 29,386.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,645.35 : 81,983.68 = 19,587.47 : x
  2. Step 2: Convert to fraction form
    54,645.35/81,983.68 = 19,587.47/x
  3. Step 3: Cross multiply
    54,645.35x = 81,983.68 × 19,587.47
  4. Step 4: Simplify right side
    54,645.35x = 1,605,852,413.60
  5. Step 5: Solve for x
    x = 1,605,852,413.60/54,645.35
  6. Step 6: Final answer
    x = 29,386.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.